refactoring: Packet interfaces

protocol-new/build.gradle

@@ -1,6 +1,8 @@
 apply from: rootDir.toPath().resolve('logic.gradle').toFile()
 
 dependencies {
+    implementation project(':utils')
+
     implementation libs.netty.transport
     implementation libs.netty.codec
 

protocol-new/src/main/java/mc/protocol/packets/ClientSidePacket.java

@@ -0,0 +1,12 @@
+package mc.protocol.packets;
+
+import mc.protocol.io.NetByteBuf;
+import mc.utils.pool.Passivable;
+
+/**
+ * Пакеты отправляемые клиентом.
+ */
+public interface ClientSidePacket extends Packet, Passivable {
+
+	void readSelf(NetByteBuf netByteBuf);
+}

protocol-new/src/main/java/mc/protocol/packets/Packet.java

@@ -0,0 +1,19 @@
+package mc.protocol.packets;
+
+/**
+ * Сетевой пакет.
+ *
+ * <p>Структура</p>
+ * <pre>
+ * | FIELD       | TYPE   | NOTES                                     |
+ * |-------------|--------|-------------------------------------------|
+ * | SIZE        | VarInt | = sizeOf(PACKET ID) + sizeOf(PACKET DATA) |
+ * | PACKET ID   | VarInt |                                           |
+ * | PACKET DATA | bytes  |                                           |
+ * </pre>
+ *
+ * @see <a href="https://wiki.vg/index.php?title=Protocol&oldid=7368#Without_compression">Packet without compression</a>
+ */
+public interface Packet {
+
+}

protocol-new/src/main/java/mc/protocol/packets/ServerSidePacket.java

@@ -0,0 +1,11 @@
+package mc.protocol.packets;
+
+import mc.protocol.io.NetByteBuf;
+
+/**
+ * Пакеты отправляемые сервером.
+ */
+public interface ServerSidePacket extends Packet {
+
+	void writeSelf(NetByteBuf netByteBuf);
+}